Description

Yttrium Trihydroxide is a high-purity inorganic compound, a key precursor material in advanced material synthesis. Its primary value lies in its role as a source of yttrium oxide (Y₂O₃) upon controlled thermal decomposition, which is critical for producing specialty ceramics and phosphors. This material is essential for manufacturers and R&D facilities in the electronics, catalysis, and specialty glass industries seeking consistent quality and reliable supply for high-performance applications.

Application

• Phosphor Manufacturing: Acts as a crucial starting material for yttrium oxide-based phosphors used in LEDs, display screens (CRTs), and fluorescent lamps.
• Advanced Ceramics: Serves as a precursor for yttria-stabilized zirconia (YSZ), a vital material for thermal barrier coatings, solid oxide fuel cells, and high-temperature structural components.
• Catalyst Synthesis: Used in the preparation of specialized catalysts for petroleum refining and organic synthesis processes.
• Specialty Glass & Optics: Employed in the production of yttrium-containing glasses that offer high refractive index and stability for optical lenses and laser host materials.
• Electronic Materials: A source material for thin-film deposition processes in semiconductor and superconductor fabrication.
• Research & Development: Utilized in academic and industrial labs for developing new materials, including nanomaterials and composites.

Basic Information

Product Name	Yttrium Trihydroxide
CAS No.	16469-22-0
Molecular Formula	Y(OH)₃
Molecular Weight	139.93 g/mol
Synonyms	Yttrium(III) hydroxide; Yttrium hydroxide (Y(OH)₃); Yttrium hydrate; Trihydroxyyttrium; Yttrium(3+) trihydroxide; Yttrium sesquioxide hydrate; Yttria precursor
EINECS	240-533-6

Quality Control

Our Yttrium Trihydroxide is manufactured under controlled conditions to ensure batch-to-batch consistency and high chemical purity. Quality is verified through a comprehensive suite of analytical techniques, including Inductively Coupled Plasma (ICP) for metallic impurity profiling and X-ray Diffraction (XRD) for phase identification. A Certificate of Analysis (COA) detailing purity, physical characteristics, and trace element content is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture and carbon dioxide, which can affect product quality.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (XRD)	Conforms to Y(OH)₃ structure
Assay (as Y(OH)₃)	≥ 99.9%
Yttrium Oxide (Y₂O₃) Content	≥ 78.0% (Theoretical)
Loss on Ignition (LOI)	20.0 - 22.5%
Particle Size (D50)	< 10 µm (or as specified)
Chloride (Cl)	≤ 50 ppm
Sulfate (SO₄)	≤ 100 ppm
Heavy Metals (as Pb)	≤ 20 ppm
Fe, Ca, Na, Si (each)	≤ 50 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.